International Jazz Day is a yearly event on 30 April, organized by the United Nations Educational, Scientific and Cultural Organization (UNESCO) to celebrate "the virtues of jazz as an educational tool, and a force for peace, unity, dialogue and enhanced cooperation among people." In celebration of this international art form that is recognized for promoting peace, dialogue among cultures, diversity, and respect for human rights and human dignity, we’ve identified the top Jazz artists whose music is found in libraries throughout the world.

This list was generated from the OCLC WorldCat® database on 15 April 2013 based on the number of artists (authors) associated with the subject heading Jazz held by OCLC member libraries. WorldCat is the world's largest and most comprehensive catalog of library resources from around the world, with more than 314 million bibliographic records that represent more than 2 billion items held by participating libraries, including books, movies, music, e-books, licensed databases, online periodicals, digital collections and more. Because of its scale, WorldCat can be used to represent a large part of the scholarly and cultural record.

We are a worldwide library cooperative, owned, governed and sustained by members since 1967. Our public purpose is a statement of commitment to each other—that we will work together to improve access to the information held in libraries around the globe, and find ways to reduce costs for libraries through collaboration.